JPS6220471B2 - - Google Patents
Info
- Publication number
- JPS6220471B2 JPS6220471B2 JP56008439A JP843981A JPS6220471B2 JP S6220471 B2 JPS6220471 B2 JP S6220471B2 JP 56008439 A JP56008439 A JP 56008439A JP 843981 A JP843981 A JP 843981A JP S6220471 B2 JPS6220471 B2 JP S6220471B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- water
- heat exchanger
- storage tank
- heating heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 160
- 238000010438 heat treatment Methods 0.000 claims description 39
- 230000008014 freezing Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/16—Arrangements for water drainage
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
Description
【発明の詳細な説明】
本発明は貯湯槽外部に水加熱用熱交換器を設
け、貯湯槽内の水加熱用交換器へ循環して貯湯を
行なう給湯装置において、水加熱用熱交換器を含
む、貯湯槽外部の水循環系のエア抜き、水抜きが
完全に行なえる構成を提供するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a hot water supply system in which a water heating heat exchanger is provided outside a hot water storage tank, and hot water is stored by circulating it to the water heating exchanger inside the hot water storage tank. This provides a configuration that allows complete removal of air and water from the water circulation system outside the hot water storage tank.
従来、貯湯槽外部に水加熱用熱交換器を設け、
貯湯槽内の水を水加熱用熱交換器へ循環して貯湯
を行なう給湯装置として、実開昭52―10037に示
される第1図の方式がある。この方式のものは貯
湯槽1、ヒートポンプユニツト2、圧縮機3、水
加熱用熱交換器4、蒸発器5、絞り6、蒸発器用
の送風機8、給湯管9、給湯栓10、給水管1
2、循環ポンプ13、貯湯槽1の下部への給水管
12と接続された導管14、給湯管9への接続さ
れた導管15によつて構成されている。この従来
の方式では、ヒートポンプユニツト2の水加熱用
熱交換器4と貯湯槽1とを接続する水の導管1
4,15に逆トラツプが生じるのが現状であり、
水加熱用熱交換器4が完全に逆トラツプになつた
状態であるため、水加熱用熱交換器4の中のエア
抜き、水抜きを完全に行なうために、水加熱用熱
交換器4の上部にエア抜き弁25と水抜き弁26
を設けていたものである。 Conventionally, a heat exchanger for water heating was installed outside the hot water tank.
As a hot water supply system that stores hot water by circulating water in a hot water storage tank to a water heating heat exchanger, there is a system shown in Fig. 1 shown in Utility Model Application No. 52-10037. This system includes a hot water storage tank 1, a heat pump unit 2, a compressor 3, a water heating heat exchanger 4, an evaporator 5, a throttle 6, a blower for the evaporator 8, a hot water supply pipe 9, a hot water tap 10, and a water supply pipe 1.
2, a circulation pump 13, a conduit 14 connected to the water supply pipe 12 to the lower part of the hot water storage tank 1, and a conduit 15 connected to the hot water supply pipe 9. In this conventional system, a water conduit 1 connects a water heating heat exchanger 4 of a heat pump unit 2 and a hot water storage tank 1.
The current situation is that a reverse trap occurs on 4 and 15.
Since the water heating heat exchanger 4 is in a completely reverse trap state, in order to completely remove air and water from the water heating heat exchanger 4, the water heating heat exchanger 4 must be removed. Air bleed valve 25 and water bleed valve 26 at the top
It had been set up.
また、貯蔵槽下部から給湯管9の最上部には安
全弁を設けている。 Further, a safety valve is provided from the bottom of the storage tank to the top of the hot water supply pipe 9.
本発明は上記の従来例に示すごとき欠点である
エア抜き、水抜き用のバルブを無くし、安全弁1
ケだけで、解決できる構成を提供するものであ
る。 The present invention eliminates the valves for air and water drainage, which are disadvantageous as shown in the above conventional example, and has a safety valve 1.
This provides a configuration that can solve the problem with just .
本発明の一実施例を第2図に示し以下説明す
る。第2図において、第1図と同じ要素部品につ
いては同じ番号を付している。図中の1は貯湯
槽、2はヒートポンプユニツトで貯湯槽1の上部
に位置せしめ、一体構成としてある。ヒートポン
プサイクルは圧縮機3、水加熱用熱交換器4、蒸
発器5、絞り6、アキユムレータ7、蒸発器5用
送風機8で構成され、これらはヒートポンプユニ
ツト2内に収納せしめる。水加熱用熱交換器4は
対向流で、圧縮機3から吐出された冷媒は上部よ
り下部へ流し、水は下部より上部へ流すごとくな
し、しかも逆トラツプの生じない構成とする。9
は給湯管で貯湯槽1の頂部より導出される。10
は給湯栓、11は給湯管12に設けられた減圧逆
止弁、13は循環ポンプで、貯湯槽1の天板21
とヒートポンプユニツト2の基板22とで形成さ
れた空間部に位置せしめ、実質的には天板21上
に固定される。14は貯湯槽1の下部と循環ポン
プ13の吸込み口を接続する導管、17は湯温制
御弁で水加熱用熱交換器4の出口湯温を一定に制
御する。18は安全弁、23は接手で、安全弁1
8と、湯温制御弁17と導管15を接続する。導
管15の他方は給湯管9に接続する。上記接手2
3を最上部として導管15、給湯管9、貯湯槽1
の頂部までの系路と、湯温制御弁17、水加熱用
熱交換器4、循環ポンプ13、導管14、貯湯構
1の下部までの系路の両系路ともに逆トラツプの
生じないように配管せしめる。安全弁18は接手
23と同一高さ以上に接続される。また、16は
補助ヒーター19は給排水弁、20給水側止水
弁、24は、電気防食用電極である。 An embodiment of the present invention is shown in FIG. 2 and will be described below. In FIG. 2, the same components as in FIG. 1 are given the same numbers. In the figure, 1 is a hot water storage tank, and 2 is a heat pump unit, which is located above the hot water storage tank 1 and has an integral structure. The heat pump cycle is composed of a compressor 3, a water heating heat exchanger 4, an evaporator 5, a throttle 6, an accumulator 7, and a blower 8 for the evaporator 5, which are housed in the heat pump unit 2. The water heating heat exchanger 4 has a counter-flow structure, so that the refrigerant discharged from the compressor 3 flows from the upper part to the lower part, and the water flows from the lower part to the upper part, and no reverse trap occurs. 9
is led out from the top of the hot water storage tank 1 by a hot water supply pipe. 10
1 is a hot water tap, 11 is a pressure reducing check valve installed in the hot water pipe 12, 13 is a circulation pump, and the top plate 21 of the hot water storage tank 1 is
and the substrate 22 of the heat pump unit 2, and is substantially fixed on the top plate 21. 14 is a conduit connecting the lower part of the hot water storage tank 1 and the suction port of the circulation pump 13, and 17 is a hot water temperature control valve that controls the outlet hot water temperature of the water heating heat exchanger 4 to be constant. 18 is a safety valve, 23 is a joint, safety valve 1
8, the hot water temperature control valve 17, and the conduit 15 are connected. The other end of the conduit 15 is connected to the hot water supply pipe 9 . Above joint 2
3 at the top, conduit 15, hot water supply pipe 9, hot water storage tank 1
Both the system to the top of the hot water temperature control valve 17, the water heating heat exchanger 4, the circulation pump 13, the conduit 14, and the system to the bottom of the hot water storage structure 1 are designed to prevent reverse traps from occurring. Install piping. The safety valve 18 is connected to the joint 23 at or above the same height. Moreover, 16 is an auxiliary heater 19, a water supply and drainage valve, 20 is a water supply side water stop valve, and 24 is an electrode for electrolytic protection.
上記構成において、ヒートポンプ運転による貯
湯時は、循環ポンプ13が運転され、貯湯槽1の
下部の水を導管14より水加熱用熱交換器4へ送
る。この水加熱用熱交換器4でヒートポンプの凝
縮熱により加熱された水は湯となり、水加熱用熱
交換器4の出口に設けられた湯温制御弁17によ
りほゞ一定の温度に保たれるごとく制御され、接
手23、導管15、給湯管9を経て貯湯槽1の頂
部に返される。貯湯槽1内では、頂部より返され
た湯は、下部の水との比重差で若干の中間層を介
してほゞ完全に分離され、貯湯槽1の上部より貯
湯されてゆく。したがつて、貯湯槽1内が完全に
水の状態からヒートポンプの運転による加熱を開
始しても、すぐに貯湯槽1の上部へ55〜60℃の湯
が貯えられるため、少量の湯であれば、運転開始
後短時間で利用可能となる。ヒートポンプ運転に
よる加熱で貯湯槽1内の水が全部55〜60℃に加熱
されたら通常の給湯には十分使用し得るものであ
るが、さらに高温の湯が必要な場合は、補助ヒー
ター16の通電を行ない必要な温度まで昇温する
ことも可能である。また、ヒートポンプ運転中は
循環ポンプ13が運転されるため、導管14、水
加熱用熱交換器4、導管15中を水が循環するた
め、この系内の凍結の心配はない。一方、ヒート
ポンプ運転が停止している場合でも、水加熱用熱
交換器4は貯湯槽1よりも上部にあるため、水加
熱用熱交換器4は、貯湯槽1の上部の熱を受けや
すく、また、貯湯槽1の水加熱用熱交換器4との
接続口は貯湯槽の上部と下部に開口しており、し
かも、接手23を最上部として、水配管系は逆ト
ラツプの生じない構成となし水加熱用熱交換器4
が接手23より下部に位置せしめられているた
め、水加熱用熱交換器4内の水が外気により冷却
されても、冷却された水は貯湯槽1の上部の湯よ
り比重が大きくなるため、循環ポンプ13、導管
14を経て貯湯槽1の下部へと自然落下し、新た
に給湯管9、導管15を経て貯湯槽1の上部の湯
が水加熱用熱交換器4へ送り込まれる対流が自然
に生じ、水加熱用熱交換器4内の水が凍結するこ
とを防止する作用を行なう。 In the above configuration, when hot water is stored by the heat pump operation, the circulation pump 13 is operated and the water in the lower part of the hot water storage tank 1 is sent through the conduit 14 to the water heating heat exchanger 4. The water heated by the condensation heat of the heat pump in the water heating heat exchanger 4 becomes hot water, which is kept at a substantially constant temperature by the hot water temperature control valve 17 provided at the outlet of the water heating heat exchanger 4. The water is returned to the top of the hot water storage tank 1 via the joint 23, the conduit 15, and the hot water supply pipe 9. In the hot water storage tank 1, the hot water returned from the top is almost completely separated from the water in the lower part through some intermediate layer due to the difference in specific gravity, and is stored from the upper part of the hot water storage tank 1. Therefore, even if heating by heat pump operation starts when the inside of the hot water tank 1 is completely filled with water, hot water at 55 to 60 degrees Celsius is immediately stored in the upper part of the hot water tank 1. If so, it can be used within a short time after the start of operation. If all the water in the hot water storage tank 1 is heated to 55 to 60°C by heat pump operation, it can be used for normal hot water supply, but if hot water at an even higher temperature is required, the auxiliary heater 16 must be energized. It is also possible to raise the temperature to the required temperature by performing Furthermore, since the circulation pump 13 is operated during the heat pump operation, water circulates through the conduit 14, the water heating heat exchanger 4, and the conduit 15, so there is no fear of freezing within this system. On the other hand, even when the heat pump operation is stopped, the water heating heat exchanger 4 is located above the hot water tank 1, so the water heating heat exchanger 4 easily receives heat from the upper part of the hot water tank 1. In addition, the connection ports of the hot water storage tank 1 with the water heating heat exchanger 4 are open at the top and bottom of the hot water storage tank, and the water piping system is constructed so that no reverse trap occurs, with the joint 23 at the top. Heat exchanger for water heating 4
is located below the joint 23, so even if the water in the water heating heat exchanger 4 is cooled by the outside air, the specific gravity of the cooled water will be greater than that of the hot water in the upper part of the hot water storage tank 1. The hot water naturally falls to the lower part of the hot water storage tank 1 via the circulation pump 13 and the conduit 14, and is then sent to the water heating heat exchanger 4 through the hot water supply pipe 9 and the conduit 15. This prevents the water in the water heating heat exchanger 4 from freezing.
さらに水加熱用熱交換器4内の水の凍結の心配
の生じるような外気温の生じる時期は給湯負荷が
大きな場合であり、通常の湯温設定は85℃適度
の高温にされるため、上述した自然対流が生じや
すくなるため、実際上ほとんど凍結の心配がなく
なることは明白である。また、装置内へ初めて給
水を行なう際、安全弁18を最上部として逆トラ
ツプの生じない配管構成としているため、安全弁
18を開とし、給配排水弁19からの給水により
装置内のエアは装置最上部の安全弁18から抜け
るため、特別なエア抜き弁を必要としない。 Furthermore, when the outside temperature is such that there is a risk of freezing of the water in the water heating heat exchanger 4, the hot water supply load is large, and the normal hot water temperature setting is set at a moderately high temperature of 85 degrees Celsius. It is clear that since natural convection is more likely to occur, there is practically no need to worry about freezing. In addition, when water is supplied into the equipment for the first time, the safety valve 18 is placed at the top to avoid a reverse trap, so the safety valve 18 is opened and the air inside the equipment is removed from the equipment by water being supplied from the water supply and drainage valve 19. Since the air escapes through the safety valve 18 at the top, no special air bleed valve is required.
さらに、装置内の排水時にも安全弁18を開と
し、給排水弁19の排水側を開とすることで、装
置内最上部の安全弁からエアが入り水は給排水弁
19から排水される、この時、安全弁18を最上
部とし、貯湯槽1の外部水配管系である水加熱用
熱交換器4、循環ポンプ13、導管14,15等
で逆トラツプの生じない配管構成であるため、こ
れらの部分の水は、自然流下して、完全に水抜き
が行なえる。上記安全弁18と給排水弁19は通
常の貯湯式電気温水器には必要なものであるた
め、従来例で説明したような、水加熱用熱交換器
4の上下に設けるべきエア抜き、水抜き用の特別
なバルブを必要としない。 Furthermore, when draining water inside the device, by opening the safety valve 18 and opening the drain side of the water supply and drainage valve 19, air enters from the safety valve at the top of the device and water is drained from the water supply and drainage valve 19. The safety valve 18 is placed at the top, and the water heating heat exchanger 4, circulation pump 13, conduits 14, 15, etc., which are the external water piping system of the hot water storage tank 1, have a piping configuration that does not cause reverse traps. The water will flow down naturally and can be completely drained. The safety valve 18 and the water supply/drainage valve 19 are necessary for a normal hot water storage type electric water heater. No special valve required.
なお実施例において加熱装置としてヒートポン
プ装置で説明したが、水加熱用熱交換器を有する
他の加熱装置、たとえば、ガス湯沸し器等であつ
てもよい。 In the embodiments, a heat pump device is used as the heating device, but other heating device having a heat exchanger for heating water, such as a gas water heater, etc. may be used.
以上説明した本発明は次のような効果を有す
る。 The present invention described above has the following effects.
(1) 安全弁18を最上部として貯湯槽1の外部水
配管系を逆トラツプのないように配管したこと
により、安全弁18と給排水弁19のみの操作
でエア抜き水抜きが可能となり、従来の水加熱
用熱交換器4の上下に必要とされていた特別な
エア抜き用バルブが不要となる。(1) By placing the safety valve 18 at the top and piping the external water piping system of the hot water storage tank 1 so as not to cause a reverse trap, air and water can be drained by operating only the safety valve 18 and the water supply/drainage valve 19. Special air vent valves that were required above and below the heating heat exchanger 4 are no longer required.
(2) また、水加熱用熱交換器4内の水が冷却され
てもその冷水は貯湯槽1の下部へ送られるため
貯湯槽上部の湯を冷すことがない。(2) Furthermore, even if the water in the water heating heat exchanger 4 is cooled, the cold water is sent to the lower part of the hot water storage tank 1, so the hot water in the upper part of the hot water storage tank is not cooled.
(3) 水加熱用熱交換器4へは常に貯湯槽1の上部
より湯が供給されるため凍結の心配がない。(3) Since hot water is always supplied to the water heating heat exchanger 4 from the upper part of the hot water storage tank 1, there is no fear of freezing.
第1図は従来の給湯装置の構成図、第2図は本
発明の一実施例の給湯装置の断面図である。
1……貯湯槽、2……ヒートポンプユニツト、
3……圧縮機、4……水加熱用熱交換器、5……
蒸発器、18……安全弁。
FIG. 1 is a configuration diagram of a conventional water heater, and FIG. 2 is a sectional view of a water heater according to an embodiment of the present invention. 1...Hot water tank, 2...Heat pump unit,
3... Compressor, 4... Water heating heat exchanger, 5...
Evaporator, 18...safety valve.
Claims (1)
とを設け、水加熱用熱交換器で加熱する水を貯湯
槽の下部より取り出し、加熱された湯を貯湯槽の
上部に返して貯湯を行なう給湯装置において、水
加熱用熱交換器は水入口を下部とし、湯出口を上
部とした構成として、この水加熱用熱交換器の湯
出口側に安全弁を設け、この安全弁を最上部とし
て、貯湯槽下部から水加熱用熱交換器、安全弁ま
での水系路と、貯湯槽上部から安全弁までの水系
路とそれぞれ逆トラツプの生じない配管構成にし
たことを特徴とする給湯装置。1. A hot water storage tank and a heating device having a water heating heat exchanger are installed, and the water to be heated by the water heating heat exchanger is taken out from the bottom of the hot water storage tank, and the heated hot water is returned to the top of the hot water storage tank to store hot water. In the hot water supply system, the water heating heat exchanger is configured with the water inlet at the bottom and the hot water outlet at the top, and a safety valve is provided on the hot water outlet side of the water heating heat exchanger, with this safety valve at the top, A water heater characterized by having a water system path from the bottom of the hot water storage tank to the water heating heat exchanger and the safety valve, and a water system path from the top of the hot water storage tank to the safety valve, each of which has a piping configuration that does not cause a reverse trap.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56008439A JPS57122239A (en) | 1981-01-22 | 1981-01-22 | Hot water supply device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56008439A JPS57122239A (en) | 1981-01-22 | 1981-01-22 | Hot water supply device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57122239A JPS57122239A (en) | 1982-07-30 |
JPS6220471B2 true JPS6220471B2 (en) | 1987-05-07 |
Family
ID=11693154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56008439A Granted JPS57122239A (en) | 1981-01-22 | 1981-01-22 | Hot water supply device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57122239A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6412380U (en) * | 1987-07-13 | 1989-01-23 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006250501A (en) * | 2005-03-14 | 2006-09-21 | Corona Corp | Storage type hot water supply device |
JP6159579B2 (en) * | 2013-05-29 | 2017-07-05 | リンナイ株式会社 | Water heater |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2200383A1 (en) * | 1972-01-05 | 1973-07-12 | Hovalwerk Ag Ospelt | GAS BOILER |
JPS5412186U (en) * | 1977-06-29 | 1979-01-26 |
-
1981
- 1981-01-22 JP JP56008439A patent/JPS57122239A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2200383A1 (en) * | 1972-01-05 | 1973-07-12 | Hovalwerk Ag Ospelt | GAS BOILER |
JPS5412186U (en) * | 1977-06-29 | 1979-01-26 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6412380U (en) * | 1987-07-13 | 1989-01-23 |
Also Published As
Publication number | Publication date |
---|---|
JPS57122239A (en) | 1982-07-30 |
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